SY-GWV-500W Grid Tie Inverter User Manual
GWV Grid Series
Dongguan Shengyang industrial Co., Ltd.
SY-GWV-500W Grid Tie Inverter
User Manual
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liability. This guide and the latest information maybe have some error, but we will improve on time. If no prior notice
changes, but incorporated into the new user manual, Dongguan Shengyang industrial Co., Ltd. has the final say.
E-mail:[email protected]
Address: No1 ShangXin Road,Xin Nong Cun,Xin'an Community, Chang'an Town,DongGuan China
GWV Grid Series
System Function
Wide voltage input(15-60VDC)
Achieve wide voltage input.
1、DC voltage input:15-60VDC
2、Second level power variable voltage conversion
High-frequency two-way and one-way grid function
1、 High frequency direct modulation, AC half wave synthesis
2、 Two-way grid means: Load consume directly. And can reverse AC current transmission.
3、 One-way grid means: Load consume directly. And banned reverse AC current transmission.
Kinds of frequency output function.
It can apply to 50Hz and 60Hz frequency of AC.
Frequency range: 45Hz ~ 63Hz
AC 0 angle with high precision auto-detection
AC phase angle of 0 through isolation amplifier then input to the MCU for high-precision detection and analysis.
The phase shift rate is less than 1%, thus achieve high-precision with phase modulation AC output together.
1、 AC phase shift: < 1%
2、 Over-zero protection: 0.2 VAC
Synchronous High-frequency Modulation
In the process of the grid, usually adapt the same phase angle in parallel. (ie, When the two-phase alternating
current total is equal to 0.Use switch to combination the two AC fusion) and the product is rectified AC
half-frequency AC to 100Hz first, then the machine use the high frequency current in the circuit and
semi-100Hz frequency alternating current generated combination, to achieve high-frequency modulation.
1、 Modulation synthesis: half wave and full-bridge modulation synthesis (100Hz / 120Hz)
2、 Synthetic way: MOSFET full-bridge
3、 High frequency: 50KHz
Pure Sine Wave Output
Use SPWM directly to make pure sine wave output.
1、Output waveform: Adopt complementary PWM to push-pull pure sine wave.
2、Generate means: enhancement-mode SPWM
Automatic Sensing Function Solar Luminosity
Use the latest luminosity perception operation technology. The different illuminate angle and intensity of the
solar panel will produce different current output. Use advanced CPU to operate the different illuminance and the
data can be directly displayed on the LCD. Then you can visually see the sense of the strength of the sun unit.
Used more convenient.
1、 Luminosity sampling point :power sampling point
2、 High precision AD sampling: integral AD sampling method
Power Automatically Locked (APL)
In different current fluctuations, we should use the MPPT function. When the MPPT function adjusted to the
maximum power point, the product automatically powers locked in maximum power point, then made the
output power more stable.
1、Power lock: The biggest sampling point of MPPT.
Automatically Adapt To Different Load Power Factor
Adapt to any of the power load.
Constant Current, Constant Power
This product is constant current, constant output power, without any overload, over-current phenomenon.
GWV Grid Series
Automatically Shut Down When The Power Output Of a Fault
When the city power system is in failure, the inverter will automatically turn off the output.
Current Limit Protection
Current limit
Stack Multiple Machines
Multiple small power inverters in parallel can achieve large output power.
High-Frequency High Conversion Rate
Adapt high frequency converter, the output more efficient.
Maximum Power Point Tracking (MPPT)
Current intensity, voltage constantly changes, if there is no power point tracking, then there will be a lot of
problems in the past usually adopted a solar controller, this product uses high-precision MPPT computing power,
automatic and immediate to solar panels output power adjustment in the maximum output point, in order to
achieve a stable output purposes.
Parameter Table
SY-GWV Grid-series models
Recommend use solar panels
DC MAX input current
AC MAX output power
DC MAX Open-circuit input-voltage
DC input voltage range
MAX output power factor
DC input Reverse voltage protection
AC output voltage range
120V versions:90~140VAC
AC frequency range
120VAC 60Hz
Output current total harmonic distortion
AC Phase
Islanding protection
Output short circuit protection
LED mode:power instruction;voltage instruction;
AC frequency instruction;over-voltage instruction
Standby Power
Night Power
-25 ℃~65℃
Ambient temperature range
0~99%( no Dew)
Indoor Type Design
Electromagnetic Compatibility
Power System Disturbance
EN61000-3-2 EN62109
Network test
DIN VDE 1026
Fire prevention level(PCB)
94 V0
DC TO AC Conversion efficiency
GWV Grid Series
Packing and weight
Net weight
G weight
Size (L x W x H)
21 x 16.5 x5.3cm
Package (L x W x H)
Inner box:34x25x15.5CM
Wall hanging
AC power cord length
Carton : 51x37x33CM
User Guide
1、Installation Connection
1、Red terminal: Connect DC positive, black terminal: Connect DC negative. Show in Figure 1.
Figure 1
2、AC socket: Connect to the mains. Put the side of the AC cord which has holes into the inverter with 3 foot
outlet and the other side of the AC cord to home 3PIN AC outlet. Show in below Figure
3、Switch: Connect the connections in right way, then turn on the switch. The inverter starts to work.
GWV Grid Series
Figure 3
2、Grid tied inverter used in the wind and solar street lights.
Use this product, do not need to add solar panel controller, battery.
Connection Method 1 (Figure 4 below):
Figure 4
Connection Method 1: Wind energy, solar energy can supply to the grid at the same time, then achieve the highest
efficiency. First consider this connection method. Figure 4
3、Stack using
In order to achieve higher power use requirements, this product can be stacked, such as: 5 grid inverter300W
stacking can achieve 1500W.And the number of the stacking is unlimited. Used as Show in below Figure
GWV Grid Series
4、Input and output
1、DC input limit
 Input voltage range: 15V to 60V
Solar Panel: Recommend using the power more than 500W and the standard voltage of 36V PV panels.
If use other types of solar panels, For example: 18V solar panlar:
Wind turbine system: Rated voltage 24VDC, maximum voltage 60VDC.
storage battery: A, 12V*3=36VDC(or 12V*4=48VDC) Three groups series connection.
B, 24V*2=48VDC(or 24V+12V=36VDC
2、AC output:
 Voltage range of the inverter whose output is 220V AC.: 190V - 260V,50Hz&60HZ
 Voltage range of the inverter whose output is 110V AC.: 90V - 140V,50Hz&60HZ
5、LED Indicator:
GWV Grid Series
1、Red LED:
1、Low-voltage protection (input DC voltage is less than 15VDC).
2、High-voltage protection (Input DC voltage is greater than 60VDC).
3、FAULT: Power grid failure or inverter their own fault.
4、Power output display: Follow the inverter power output size flow flashing quickly or slowly.
2、Green LED:
1、AC voltage display: Display the power grid voltage.
125VAC: 90VAC-140VAC
230VAC: 190VAC-260VAC
2、AC frequency display: Display the power grid frequency.
---Non-professionals do not disassemble. Only qualified personnel may repair this product.
---Please install inverter in the low humidity and well-ventilated place to avoid the inverter over-heating, and
clear around the inflammable and explosive materials.
---When using this product, avoid children touching, playing, to avoid electric shock.
---Recommended Maximum DC input 4AWG cable capable of handling more than 50A of the
cable size.
---Optimal length of the DC input line 1.8M or less, long cable will allow solar panels to the inverter
DC voltage drop caused by wear and tear.
---Connected to a power outlet to provide AC.
---Connected solar panels, battery or wind generators DC input DC power supply cable.
---Proposed wind power plant with its own charge controller and load dump.
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